Sampler.



G. S. BACKUS.

- SAMPLER.

APPLICATION FILED SEPT. 23. Hi4.

Patented Aug. 21; 1917.

2 HEETS-SHEET i- INVENTOR. G. S. Baa F05 BY A ATTORNEYS.

WITNESSES: 7 .6267? A 19mm G. S. BACKUS SAMPLER.

APPLICATION FILED ssrmza. 1914.

2 sntns-sum 2.v

W I TNESSES: NVENTOR;

6. Baa/rug BY L ATTORNEYS.

GEORGE S. BACKUSL OF LEADVILLE, COLORADO, ASSIGNOR TO FREDERICK BRA'U'N,

DE LOS ANGELES, CALIFORNIA.

SAMPLER.

Specification of Letters Patent. Patgntd A 0, 21, 1917,

Application filed September 23, 1914. Serial No. 863,206.

T 0 M5 whom it may concern: I

Be it known that I, GEORGE S. BAOKUS, of Leadville, Lake county, State of Colorado,

have invented. certain new and useful Im provements in Samplers, of which the fol lowmg 1s a specification.

The invention'relates to devices for sam- Jlin )ulverized ores rain dru 's andother 7 b 7 2:

similar materials.

An object of the invention is to provide a sampler whichis continuous in operation,

In. the majority of samplers asheretofore constructed, a portion, usually the larger portion, ofthe material being, sampled is retained in theapparatus so that only a com paratlvely small amount of material could .besampled at one operation, after which the apparatus must be opened and the collected material removed, before another sample could be run through or before more of the same material could be run through.

In samplers, the material is usually quartered, three-quarters of the mater al belng ,going, will be set forth, at length in the followingdescription, where I shall outline in full that form of;the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. In the drawings I have 1 shown only onespecific form of'my generic invention, but it is to be understood that I do not limit myself tosuch form because my invention may be embodied in a multiplicity of forms, each being a species of my said invention. It is also to beunderstood that by the claims succeeding the description of my invention I desire to cover theinvention in whatever, formit may be embodied.

In said drawings:

Figure 1 is a side elevation of the apparatus, partsthereof being shown in section to illustrate the interior arrangement.

Fig. 2 is a top or plan view of the upper dividing bucket.

Fig. 3 is a section of-the .upper bucket taken on the line 33 Fig. 2. I

Fig. 1 is a top or plan view of the lower dividing bucket.

5 is a section ofthe lower dividing bucket, taken on the line 5 5 Fig. 1.

Fig. 6 is a top or plan view of the structure arranged between the upper and lower 1 buckets. i y I Fig. 7 is a section of the intervening structure taken on the line 7 7 Fig. 6. a

The apparatus comprises a suitable frame or support 2 in which are arranged bearings for the drive shaft 3, which shaft may bejrotated by any suitable means. Pivotallyiattached to the upper end of the frame2 is a hopper 4, provided with a dischargechute 5, the opening of which is controlled bythe adjustable gate 6. The bottom ofthe hopper is inclined toward the discharge chute, and means are provided for rocking or jolting the hopper to insure the discharge of the material therefrom. Pivoted to the hopper is a rod 7 on the lower end of which is a roller 8 which contacts with an irregular surfaced cam 9 fixed to the drive shaft. The roller 8 is held in engagement with the cam by a spring 12 attachedat one end to the hopper and atthe other end to the frame 2.

As the drive shaft rotates, therefore, the

hopper is subjected to continuousjolting which causes the. material therein to flow through the discharge chute. V

Secured to the frame 2 is a bracket or structure 13 which is arranged in line with the drive shaft, and which is provided with a hollow hub 14 through which the drive shaft extends. The bracket is provided with three concentric walls 15-16-17 spaced from each other, and forming therebetween annular passages for the material passing through the apparatus, as will be hereinafter explained,

Arranged on the bracket" is; a casing formed of the upper casing 18 and the lower casing 19, andthe lower casing having an inclined bottom terminating in a discharge chute 22. The, casings, are preferably at tachedto the outer circular wall, 17, so that they inclose the entire dividing apparatus.

Arranged within the upper, casing 18 is a dividing element or bucket 23 which is arranged to be rotated and arranged within the lower casing 19 is a similar element or bucket 24: arranged to be rotated in the oppositedirection. Ihave termed these elements buckets, since that is the usual commercial name for the dividing elements, and the term is to be construed as meaning a dividing means and not as 'abucket in the ordinary sense of the word. I

At the center of the bracket 13 there isv formed a vertically disposed bearing 25 in which is arranged ashaft or'aXle26l Rotatably mounted on the shaft 26, above and below the bearing 25, are bevel gears '27-28 which are enmeshed with the bevel gear 29 secured to the end of the drive shaft. When the drive shaft is rotated, the gears 27*and 28 rotate in opposite directions. The gears are arranged within the inclosu're of the wall 15, which is "higher than the other walls,

and which wall serves in part to preventthe material passing through the apparatus from coming into contact with the gears.

Secured to the upper gear 27 is the upper dividing element or bucket 23 and secured to the lower gear 28 is the lower dividing element or'bucket 24:, and when the appa ratus is in operation, the buckets rotate in opposite directions.

The'upper dividing element 23 comprises a conical plate 64 of substantially the same diameter as the ring 16. Formed on the plate are a plurality of radial walls or rlbs 31'-I3233-34, which divide the surface of the plateinto a plurality of sectors 3536 edge thereof. Any material fed into pockets '35 and 37 discharges through the apertures 43 and 44:ai1d any material which is fed onto the bottom in the sectors 36 and 38 dis charges over the periphery of the bottom a wall. With the dividing element rotating, a stream of material fed thereto is divided into two substantially equal portions, one portion discharging through the apertures 43 and A l and the other portion discharging over the edge of thebo'ttom. The portion which discharges through the apertures passes downwardly through the annular passage between the walls 15' and 16 of the bracket, andthe portion which discharges over the edge discharges intothe casing 18 passes downward between the walls 16 and 17 of the bracket into the casing 19, whence it discharges through the spout 22.

The casing 18 is provided with a cover 415 in which, at one side of the center, is arranged a chute 16 into which the material being sampled is fed from the hopper. This chute is preferably arranged so that it discharges the material at one side of the center of the-upper dividing element 23 so that the material is not fed to two diametrically opposite sectors at the same time.

The lower dividing element 24 is divided into a plurality of annular sections by the radially disposed walls 51-525354l, which extend outward fromthe-inner circular wall 55, which is of substantially the same diameter as the wall 15 on the bracket. The walls 5152 and 5354 are joined by circular walls 56-57 forming two pockets 58 59. The walls 56 and 57 slope inwardly and downwardly, the diameter of the wall at its upper edge being substantially the same as the diameter of the wall 16 on the bracket. 7

The pockets 58 and 59 are open at'the'bottom and discharge the material entering them into the conical chute 61 which extends through the bottom of the casing 19, the diameter of the loweredges of walls 56 and 57 being substantially the same'as the diameter of the upper edgeof chute 61. Be

tween the walls 5253; and 54 51 are" formed outwardly inclined walls 6263 which slope from the upper edge of wall 55, the diameter of the lower edges of walls 6263 being slightly greater than the diameterof the upper edge of the chute 61.

The material passing downwardly through the annular passage between walls 15 and 16, engages the dlviding element 24 and one half of it is diverted into the chute 6'1 and one-half is discharged into the casing '19,

whence it discharges through the spout 22. It is evident, therefore, that substantially one-fourth of the material fed into the chute 416 discharges through the chute 61 and substantially three-fourths of the material dis charges through the spout 22. "In passing through the apparatus the material is thoroughly mixed and divided and the portion discharged through the chute 61 is a representative sample. Since none of the material is retained in the apparatus, thereisno limitation as to the volume of material which maybe passed through the apparatus atone operatlon, because the apparatus maybe operated continuously. I

I claim! 1. In a dividing-apparatuaa casing hav- 111g two discharge apertures, a plurality of dividing elements rotatable about a vertical axis arranged in said casing, a stationary element interposed between and supporting said dividing elements, said dividing elements being adapted to divide material and direct the divisions thereof to said apertures respectively, and means for rotating said dividing elements.

2. In a dividing apparatus, a casing having two discharge apertures, two dividing elements oppositely rotatable about a vertical axis arranged in said casing, a stationary element interposed between and supporting said dividing elements and means for rotating said dividing elements, where by material is divided and subdivided and one portion of divided and one portion of subdivided material is directed to one aperture and the other subdivided portion is di rected to the other aperture.

8. In a dividingapparatus, a casing having two discharge apertures, a stationary element in said casing, two oppositely rotatable conical plates in said casing divided into a plurality of sections and arranged one above and one below said stationary element and means on said stationary element for rotating said conical plates, whereby 1nateria l is divided by the upper plate and one portion directed toward one discharge aperture and the other portion directed upon the lower plate, and the divided portion is subdivided by the lower plate and one subdivision thereof is directed toward the first mentioned aperture and the other subdivision toward the other aperture.

at. In a dividing apparatus, a rotatable conical plate divided into sections and adapted to divide material and discharge the divided portions, a stationary element supporting said dividing element and provided with a plurality of passages through which the divided portions respectively pass, an oppositely rotatable conical plate divided into sections arranged below and adapted to receive material from one of said passages and simultaneously subdivide and separately discharge the subdivided portions, and means for rotating said plates.

5. In a dividing apparatus, a casing having two discharge apertures, a stationary element arranged in said casing, a rotatable conical plate divided into sections arranged upon the upper side of said stationary element, and a second rotatable conical plate divided into sections arranged upon the lower side of said stationary element, said conical plates being adapted respectively to divide and subdivide material and to direct one divided and one subdivided portion thereof to one aperture, the other subdivided portion of said material being directed to the other aperture.

6. In a dividing apparatus, a bracket having annular walls spaced apart, forming therebetween a plurality of passages, a rotatable dividing element arranged above the bracket adapted to divide material and direct the divided portions through said passages respectively, a rotatable subdividing element arranged below one of said passages and means for rotating and supporting said elements.

7. In a dividing apparatus, a bracket supported by the frame of the apparatus having annular walls spaced apart, forming therebetween a plurality of passages, a casing secured to the outer annular wall and having a discharge aperture, a rotatable dividing element therein adapted to divide material and direct the divided portions each through a different one of said passages, a rotatable subdividing element arranged below one of said passages, adapted to divide the material which passes through said passage, and a chute arranged below the subdividing element, extending through the casing and arranged to receive a subdivided portion of the divided material and means to rotate the dividing and the subdividing elements.

8. In a dividing apparatus, a bracket supported by the frame of the apparatus having annular walls spaced apart and forming therebetween a plurality of passages, a horizontal shaft and a vertical shaft mounted in said bracket, bevel gears rotatably mounted on opposite ends of the vertical shaft, a bevel gear on the horizontal shaft engaging said first named gears, a dividing element mounted on the upper gear on the vertical shaft adapted to divide material and discharge the divided portions separately through said passages, a subdividing GEORGE S. BAOKUS.

In presence of- R. W. Kine, ALINE WHIPPLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. (1. 

